CN102928786B - Accumulator capacity evaluation method and system - Google Patents
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Abstract
This application discloses a kind of accumulator capacity evaluation method and system, the method comprises the following steps: detect conductance during battery-operated; Obtain conductance radix, scale-up factor and the conductance reference value corresponding with described accumulator respectively; The calculated capacity of described accumulator is calculated according to described conductance, conductance radix, scale-up factor and conductance reference value; The calculated capacity of described accumulator and null value are compared; The capacity of described accumulator is obtained according to comparative result.Compared with prior art, the method is when testing the capacity of accumulator, do not need to carry out 100% property checked electric discharge to accumulator, only need detect accumulator conductance, just can estimate the capacity of accumulator, institute is in this way when testing, and the working time is short, efficiency is high, can judge the capacity of accumulator fast.
Description
Technical field
The application relates to battery technology field, particularly relates to a kind of accumulator capacity evaluation method and system.
Background technology
Explanation of nouns:
Accumulator conductance: conductance is exactly pass on the ability of electric current, reflects the physical features that battery unit can carry out the polar plate area of chemical reaction.
The property checked is discharged: in normal operating battery pack, in order to check its actual capacity, battery pack is departed from and runs, carry out constant-current discharge with the discharge current specified, as long as one of them cell batteries has been put into the final voltage of regulation, should stop electric discharge.
Final voltage: in accumulator capacity seletion calculation, final voltage refers to the power load of straight-flow system, specifying in discharge time the minimum sparking voltage requiring accumulator to keep.To accumulator itself, final voltage refers to that accumulator is within different discharge time and the minimum sparking voltage allowed under different discharge rate discharging condition.Generally, the former requirement is higher than the latter.
Accumulator is the important component part of DC power-supply system in electric supply system; it is as DC power supply; mainly be responsible for as electrical secondary system load in electric system provides safety, stable, reliable electric power safeguard, guarantee the normal operation of relay protection, communication facilities.Therefore, accumulator stability and can be supplied to load in discharge process actual capacity to guaranteeing that the safe operation tool of power equipment is of great significance.
But accumulator is after the use of certain hour, Chang Yiyin active substance comes off, the factor such as grid corrosion or pole plate distortion, sulfuration, and make capacity reduce until lost efficacy gradually, and for tens the joints even battery system of tens joint series connection, once wherein a certain joint accumulator premature breakdown, as found not in time, then the time one is long, and other accumulator can be caused to occur damaging.So, need to find out in time in electric system and lost efficacy or the undesirable accumulator of capacity, and processed, to remove a hidden danger.
Because the maintaining method of lead-acid accumulator is loaded down with trivial details, had at present exempt to add water, flexible for installation, floor area is little and do not formed the valve controlled sealed lead-acid accumulator of the features such as acid mist replace.
At present, in electric system, when determining valve controlling type accumulator capacity, 100% checking discharging test must be carried out to valve controlling type accumulator, obviously to accumulator carry out 100% the property checked electric discharge the working time longer, about need 10 hours.And in electric system, for 220KV, 500KV electric substation, this can realize, because all two group storage battery groups of this kind of power transformation, a group storage battery group can keep work, and other one group can be used for doing experiment, and 110KV electric substation is difficult to realize, because this kind of electric substation only has a group storage battery group, so for 110KV electric substation, 50% checking discharging test can only be carried out to accumulator, and cannot the overall condition of accumulator be tested, the total volume of accumulator cannot be understood.
In addition, traditional time estimation needed for storage battery checking charge/discharge operation is as follows: 110KV electric substation (having a group storage battery) the charge/discharge operation time at least needs 13 hours, be specially: electric discharge needs 5 hours, charging needs 8 hours; 220KV, 500KV electric substation (having two group storage battery groups) at least needs 24 hours at every group storage battery charge/discharge operation time, concrete: for electric discharge at least needs 9 hours, charging needs 15 hours.Two group storage batteries just at least need 48 hours.This still does the required time of once circulating.Which costs the plenty of time of staff.For the 110KV electric substation only having a group storage battery group, the total volume (because the accumulator capacity of 50% can only be put) of accumulator cannot be understood.
By the research to prior art, inventor finds, now traditional storage battery checking charge/discharge operation, there is following shortcoming: (1) longevity of service; (2) capacity of accumulator can not be judged fast, be even more important in emergency condition; (3) in examination, can not judge the situation of accumulator in real time; (4) trouble accumulator is carried out to the significant troubles such as open circuit when judging, easily cause the blast of trouble accumulator, catch fire, bring hidden trouble to the safe operation of electric substation, and jeopardize personal safety; Reach cut-off voltage (such as 1.8V) if any a joint battery tension in (5) one group storage batteries, then work of discharging can not continue, thus the judgement of the capacity of other accumulator is organized in impact to this.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of accumulator capacity evaluation method and system, to realize the capacity that can judge accumulator safely, efficiently, can grasp the capacity situation of accumulator in time.
To achieve these goals, the technical scheme that provides of the embodiment of the present application is as follows:
A kind of accumulator capacity evaluation method, comprises the following steps:
Detect conductance during battery-operated;
Obtain conductance radix, scale-up factor and the conductance reference value corresponding with described accumulator respectively;
The calculated capacity of described accumulator is calculated according to described conductance, conductance radix, scale-up factor and conductance reference value;
The calculated capacity of described accumulator and null value are compared;
The capacity of described accumulator is obtained according to comparative result.
Preferably, in this accumulator capacity evaluation method that the embodiment of the present application provides, conductance during described detection battery-operated, specifically comprises:
The both positive and negative polarity of described accumulator is connected with detection load and discharges;
Control described accumulator to discharge according to default discharge rate, and carry out timing;
After described timing time equals Preset Time, detect the conductance of described accumulator.
Preferably, in this accumulator capacity evaluation method that the embodiment of the present application provides, before conductance during described detection battery-operated, comprise further:
In advance for the accumulator of some models, repeatedly test respectively;
According to the conductance radix of this model accumulator of test result calculations, scale-up factor and conductance reference value;
Set up accumulator model and the corresponding relation between conductance radix, scale-up factor and conductance reference value, and the corresponding relation of the accumulator of different model forms a mapping table.
Preferably, in this accumulator capacity evaluation method that the embodiment of the present application provides, conductance radix, scale-up factor and conductance reference value that described acquisition is corresponding with described accumulator, specifically comprise:
Obtain the model of carrying out the accumulator of Conductivity detection;
In described mapping table, search the model obtaining described accumulator, and search according to corresponding relation and obtain the conductance radix corresponding with described accumulator, scale-up factor and conductance reference value.
Preferably, in this accumulator capacity evaluation method that the embodiment of the present application provides, the described capacity obtaining described accumulator according to comparative result, specifically comprises:
When the calculated capacity of described accumulator is greater than null value, using the capacity of described calculated capacity as described accumulator;
When the calculated capacity of described accumulator is less than or equal to null value, then determine that the capacity of described accumulator is zero.
A kind of accumulator capacity estimating system, comprising:
Electric conductance test instrument, parameter acquiring unit, calculated capacity acquiring unit, comparing unit and determining unit, wherein:
Described electric conductance test instrument, for detecting conductance during battery-operated;
Described parameter acquiring unit, for obtaining conductance radix, scale-up factor and the conductance reference value corresponding with described accumulator respectively;
Described calculated capacity acquiring unit, for calculating the calculated capacity of described accumulator according to described conductance, conductance radix, scale-up factor and conductance reference value;
Described comparing unit, for comparing the calculated capacity of described accumulator and null value;
Described determining unit, for obtaining the capacity of described accumulator according to comparative result.
Preferably, in this accumulator capacity estimating system that the embodiment of the present application provides, described accumulator discharges according to default discharge rate;
Described electric conductance test instrument also comprises: timer,
Described timer is connected with electric conductance test instrument, carries out timing for the time of discharging according to default discharge rate to described accumulator, and after timing time is equaled Preset Time, controls described conductometric detector and start working.
Preferably, this accumulator capacity estimating system that the embodiment of the present application provides comprises further: parameter presets unit, comprising: pretest unit, parameter calculation unit and corresponding relation set up unit, wherein:
Pretest unit, in advance for the accumulator of some models, repeatedly tests respectively;
Parameter calculation unit, for the conductance radix according to this model accumulator of test result calculations, scale-up factor and conductance reference value;
Corresponding relation sets up unit, and for setting up accumulator model and the corresponding relation between conductance radix, scale-up factor and conductance reference value, and the corresponding relation of the accumulator of different model forms a mapping table.
Preferably, in this accumulator capacity estimating system that the embodiment of the present application provides, described parameter acquiring unit comprises: model acquiring unit and query unit, wherein:
Model acquiring unit, for obtaining the model of the accumulator carrying out Conductivity detection;
Query unit, for searching the model obtaining described accumulator in described mapping table, and searches according to corresponding relation and obtains the conductance radix corresponding with described accumulator, scale-up factor and conductance reference value.
Preferably, in this accumulator capacity estimating system that the embodiment of the present application provides, described determining unit comprises: first determines that subelement determined by subelement and second, wherein:
First determines subelement, is connected with described comparing unit, for when the calculated capacity of described accumulator is greater than null value, using the capacity of described calculated capacity as described accumulator;
Second determines subelement, is connected with described comparing unit, for when the calculated capacity of described accumulator is less than or equal to null value, then determines that the capacity of described accumulator is zero.
From above technical scheme, this accumulator capacity evaluation method that the embodiment of the present application provides, the method needs when testing the model knowing accumulator for the accumulator of different model, and get the parameter in the corresponding appraising model of this accumulator according to the model of accumulator, detect the conductance of accumulator again, the calculated capacity of accumulator can be calculated, then calculated capacity and null value are compared, just can obtain the estimated capacity of accumulator according to comparative result.
Compared with prior art, the method is when testing the capacity of accumulator, do not need to carry out 100% property checked electric discharge to accumulator, only need detect accumulator conductance, just can estimate the capacity of accumulator, institute is in this way when testing, and the working time is short, efficiency is high, can judge the capacity of accumulator fast.Therefore, the method may be used for some situations needing urgent test accumulator capacity, and in examination, can carry out detection in real time and judge, can judge the significant troubles such as the open circuit of accumulator safely, efficiently to the performance condition of accumulator.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of schematic flow sheet of the accumulator capacity evaluation method that Fig. 1 provides for the embodiment of the present application;
The detailed construction schematic diagram of the conductance during detection battery-operated that Fig. 2 provides for the embodiment of the present application;
The another kind of structural representation of the accumulator capacity evaluation method that Fig. 3 provides for the embodiment of the present application;
Another structural representation of the accumulator capacity evaluation method that Fig. 4 provides for the embodiment of the present application;
A kind of structural representation of the accumulator capacity estimating system that Fig. 5 provides for the embodiment of the present application;
The another kind of structural representation of the accumulator capacity estimating system that Fig. 6 provides for the embodiment of the present application;
Another structural representation of the accumulator capacity estimating system that Fig. 7 provides for the embodiment of the present application;
Another structural representation of the accumulator capacity estimating system that Fig. 8 provides for the embodiment of the present application.
Embodiment
In existing electric system, for 220KV, 500KV electric substation, this can realize, because all two group storage battery groups of this kind of power transformation, a group storage battery group can keep work, and other one group can be used for doing experiment, and 110KV electric substation is difficult to realize, because this kind of electric substation only has a group storage battery group, so for 110KV electric substation, 50% checking discharging test can only be carried out to accumulator, and cannot the overall condition of accumulator be tested, the total volume of accumulator cannot be understood.
In addition, traditional time needed for storage battery checking charge/discharge operation is longer: 110KV electric substation (having a group storage battery) the charge/discharge operation time at least needs 13 hours; And 220KV, 500KV electric substation (having two group storage battery groups) at least needs 24 hours at every group storage battery charge/discharge operation time, two group storage batteries just at least need 48 hours.
For this reason, this application provides a kind of evaluation method and system of accumulator capacity, the method sets up the appraising model of accumulator capacity, and the accumulator for different model only need know the model of accumulator when testing, and detect the conductance of accumulator, the capacity of accumulator can be determined fast.
It is more than the core concept of the application, technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all should belong to the scope of the application's protection.
Embodiment one:
A kind of schematic flow sheet of the accumulator capacity evaluation method that Fig. 1 provides for the embodiment of the present application.
As shown in Figure 1, this accumulator capacity evaluation method comprises the following steps:
S100: detect conductance during battery-operated.
When detecting, the conductance of conductometric detector to accumulator can be utilized to measure.In the embodiment of the present application, employing is the electric conductance test instrument that MIDTRONICS (Mi Te) company produces.
S200: obtain conductance radix, scale-up factor and the conductance reference value corresponding with described accumulator respectively.
For the accumulator of different model, because manufacturer is different, its production technology and product specification difference, in addition, even if manufacturer is identical, the product specification of the accumulator of different model is also different.So for the accumulator of different model, the conductance radix corresponding to it, scale-up factor and conductance reference value are also different.
Here conductance radix, scale-up factor and conductance reference value are the parameters of the model definition for estimating accumulator capacity.
S300: the calculated capacity calculating described accumulator according to described conductance, conductance radix, scale-up factor and conductance reference value.
After getting conductance radix, scale-up factor and conductance reference value, utilize the calculated capacity of estimation equation calculating accumulator, estimation equation is here:
Conductance reference value-scale-up factor (conductance radix-Conductivity detection value);
Utilize above-mentioned estimation equation, just can obtain a calculated capacity value of accumulator.
S400: the calculated capacity of described accumulator and null value are compared.
The Main Function of this step is the magnitude relationship between the calculated capacity value that calculates of determining step S300 and null value, and this is due to for some situation, and the calculated capacity value of accumulator there will be negative value, and this does not obviously meet actual conditions.
S500: the capacity obtaining described accumulator according to comparative result.
In this step, when comparative result is: the calculated capacity of described accumulator is greater than null value, so just using the capacity of calculated capacity as described accumulator;
And when comparative result is: when the calculated capacity of described accumulator is less than or equal to null value, then determine that the capacity of described accumulator is zero.
Namely the situation being negative value for calculated capacity value is all rejected.
In addition, in the embodiment of the present application, step S400 and S500 can adopt and arrange appraising model to realize, and is specially: arrange a MAX function, and using null value and calculated capacity two amounts as this MAX function, that is:
Accumulator capacity C=MAX[0, conductance reference value-scale-up factor × (conductance radix-detection electric conductivity value)]
Like this when after the calculated capacity obtaining accumulator, directly calculated capacity is updated to this appraising model, the capacity of accumulator can be obtained.
From above technical scheme, this accumulator capacity evaluation method that the embodiment of the present application provides, the method needs when testing the model knowing accumulator for the accumulator of different model, and get the parameter in the corresponding appraising model of this accumulator according to the model of accumulator, detect the conductance of accumulator again, the calculated capacity of accumulator can be calculated, then calculated capacity and null value are compared, just can obtain the estimated capacity of accumulator according to comparative result.
Compared with prior art, the method is when testing the capacity of accumulator, do not need to carry out 100% property checked electric discharge to accumulator, only need detect accumulator conductance, just can estimate the capacity of accumulator, institute is in this way when testing, and the working time is short, efficiency is high, can judge the capacity of accumulator fast.Therefore, the method may be used for some situations needing urgent test accumulator capacity, and in examination, can carry out detection in real time and judge, can judge the significant troubles such as the open circuit of accumulator safely, efficiently to the performance condition of accumulator.
In addition, in the process realizing technical scheme, applicant, through the accumulator capacity of carrying out 40 group storage battery groups (about 3200 accumulators) of one-year age and conductance correlation research and test, just finds to there is very large relevance between accumulator capacity and accumulator conductance.Physical relationship is: more greatly, the capacity of accumulator is larger for accumulator conductance; Accumulator conductance is less, and the capacity of accumulator is less, and accumulator conductance and accumulator capacity directly also exist certain proportional relation.This correlation degree, reaches more than 90%.According to the conductance of accumulator, the capacity of accumulator just can be estimated.The application, just according to this principle, improves existing storage battery checking charge and discharge algorithm, the working time is shortened greatly, improves work efficiency, alleviate labour intensity, can be with larger economic benefit to exploiting entity.
Embodiment two:
In the above-described embodiments, when detecting conductance during battery-operated, the fluctuation just started when discharging in order to avoid accumulator impacts testing result, in the embodiment of the present application, is described in detail for conductance step when detecting battery-operated.
The detailed construction schematic diagram of the conductance during detection battery-operated that Fig. 2 provides for the embodiment of the present application.
As shown in Figure 2, the step of conductance during detection battery-operated comprises:
S101: the both positive and negative polarity of described accumulator is connected with detection load and discharges.
S102: control described accumulator and discharge according to default discharge rate, and carry out timing.
Here presetting discharge rate can be 10 hours discharge rates.The object of carrying out timing is that accumulator discharges a period of time in order to control when carrying out Conductivity detection, thus impact accumulator can being avoided to start fluctuation when discharging bring testing result.
S103: after described timing time equals Preset Time, detects the conductance of described accumulator.
Here Preset Time can be 10 minutes, and after 10 minutes, the discharge scenario of accumulator tends to be steady, now can the conductance situation of direct-detection accumulator.
The method that the embodiment of the present application provides, when carrying out Conductivity detection, accumulator discharges a period of time, thus impact accumulator can being avoided to start fluctuation when discharging bring testing result.
Embodiment three:
The another kind of structural representation of the accumulator capacity evaluation method that Fig. 3 provides for the embodiment of the present application.
As shown in Figure 3, before the conductance of the method when detecting battery-operated, further comprising the steps of:
S600: in advance for the accumulator of some models, repeatedly test respectively.
S700: according to the conductance radix of this model accumulator of test result calculations, scale-up factor and conductance reference value.
S800: set up accumulator model and the corresponding relation between conductance radix, scale-up factor and conductance reference value, and the corresponding relation of the accumulator of different model forms a mapping table.
Here the mapping table set up in advance can be stored in storage medium.
By setting up the corresponding relation between the accumulator of different model and its conductance radix, scale-up factor and conductance reference value, can conveniently when the follow-up accumulator to this model detects can fast finding to conductance radix, scale-up factor and conductance reference value.
Another structural representation of the accumulator capacity evaluation method that Fig. 4 provides for the embodiment of the present application.
As shown in Figure 4, on the basis of the step that the method provides at Fig. 3, obtain conductance radix, scale-up factor and the conductance reference value corresponding with described accumulator, specifically comprise the following steps:
S201: obtain the model of carrying out the accumulator of Conductivity detection.
S202: search the model obtaining described accumulator in described mapping table, and search according to corresponding relation and obtain the conductance radix corresponding with described accumulator, scale-up factor and conductance reference value.
Owing to having established accumulator model and the corresponding relation between its conductance radix, scale-up factor and conductance reference value in above-mentioned steps S800, so afterwards at every turn estimate accumulator capacity time, can directly according to this mapping table, fast finding to a certain model accumulator corresponding to conductance radix, scale-up factor and conductance reference value.
Embodiment four:
The embodiment of the present application additionally provides a kind of accumulator capacity estimating system, and Fig. 5 is a kind of structural representation of accumulator capacity estimating system.
As shown in Figure 5,1 accumulator or battery pack in figure, this accumulator capacity estimating system comprises: electric conductance test instrument 2, parameter acquiring unit 3, calculated capacity acquiring unit 4, comparing unit 5 and determining unit 6, wherein:
Electric conductance test instrument 2 is connected with accumulator 1, for detecting conductance during battery-operated.In the embodiment of the present application, employing is the electric conductance test instrument that MIDTRONICS (Mi Te) company produces.
In other embodiment of the application, the fluctuation just started when discharging in order to avoid accumulator impacts testing result, as shown in Figure 6, electric conductance test instrument 2 also comprises: timer 7, wherein: timer 7 is connected with accumulator 1, electric conductance test instrument 2 respectively, time for discharging according to default discharge rate to described accumulator carries out timing, and will work as after timing time equals Preset Time, controls conductometric detector 2 and starts working.
Parameter acquiring unit 3 is for obtaining conductance radix, scale-up factor and the conductance reference value corresponding with described accumulator 1 respectively.Calculated capacity acquiring unit 4 is connected with electric conductance test instrument 2, parameter acquiring unit 3 respectively, for calculating the calculated capacity of described accumulator according to described conductance, conductance radix, scale-up factor and conductance reference value, comparing unit 5 is connected with described calculated capacity acquiring unit 4, for the calculated capacity of described accumulator and null value are compared
Determining unit 6 is connected with comparing unit 5, for obtaining the capacity of described accumulator according to comparative result.
As shown in Figure 7, in the embodiment of the present application, determining unit 6 can comprise: first determines that subelement determined by subelement and second, wherein:
First determines subelement 61, is connected with described comparing unit 5, for when the calculated capacity of described accumulator is greater than null value, using the capacity of described calculated capacity as described accumulator;
Second determines subelement 62, is connected with described comparing unit 5, for when the calculated capacity of described accumulator is less than or equal to null value, then determines that the capacity of described accumulator is zero.
Can see from foregoing description, comparing unit 5 and determining unit 6 can adopt and arrange appraising model to realize, and are specially: arrange a MAX function, and using null value and calculated capacity two amounts as this MAX function, that is:
Accumulator capacity C=MAX[0, conductance reference value-scale-up factor × (conductance radix-detection electric conductivity value)]
Like this when after the calculated capacity obtaining accumulator, directly calculated capacity is updated to this appraising model, the capacity of accumulator can be obtained.
Compared with prior art, this system is when testing the capacity of accumulator, do not need to carry out 100% property checked electric discharge to accumulator, only need detect accumulator conductance, just can estimate the capacity of accumulator, institute is in this way when testing, and the working time is short, efficiency is high, can judge the capacity of accumulator fast.Therefore, the method may be used for some situations needing urgent test accumulator capacity, and in examination, can carry out detection in real time and judge, can judge the significant troubles such as the open circuit of accumulator safely, efficiently to the performance condition of accumulator.
Embodiment five:
Another structural representation of the accumulator estimating system that Fig. 8 provides for the embodiment of the present application.
As shown in Figure 8, in other embodiment of the application, this system can also comprise: parameter presets unit 8, comprising: pretest unit 81, parameter calculation unit 82 and corresponding relation set up unit 83, wherein:
Pretest unit 81, in advance for the accumulator of some models, repeatedly tests respectively;
Parameter calculation unit 82, for the conductance radix according to this model accumulator of test result calculations, scale-up factor and conductance reference value;
Corresponding relation sets up unit 83, and for setting up accumulator model and the corresponding relation between conductance radix, scale-up factor and conductance reference value, and the corresponding relation of the accumulator of different model forms a mapping table.Here the mapping table set up in advance can be stored in storage medium.
By setting up the corresponding relation between the accumulator of different model and its conductance radix, scale-up factor and conductance reference value, can conveniently when the follow-up accumulator to this model detects can fast finding to conductance radix, scale-up factor and conductance reference value.
In addition, as shown in Figure 8, preset on the basis of unit in parameter, parameter acquiring unit 3 can comprise: model acquiring unit 31 and query unit 32, wherein:
Model acquiring unit 31, for obtaining the model of the accumulator carrying out Conductivity detection.
Query unit 32, for searching the model obtaining described accumulator in described mapping table, and searches according to corresponding relation and obtains the conductance radix corresponding with described accumulator, scale-up factor and conductance reference value.
For convenience of description, various unit is divided into describe respectively with function when describing above device.Certainly, the function of each unit can be realized in same or multiple software and/or hardware when implementing the application.
As seen through the above description of the embodiments, those skilled in the art can be well understood to the mode that the application can add required general hardware platform by software and realizes.Based on such understanding, the technical scheme of the application can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the application or embodiment.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually see, what each embodiment stressed is the difference with other embodiments.Especially, for system embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, relevant part illustrates see the part of embodiment of the method.System embodiment described above is only schematic, the wherein said unit illustrated as separating component or can may not be and physically separates, parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.Those of ordinary skill in the art, when not paying creative work, are namely appreciated that and implement.
The application can be used in numerous general or special purpose computing system environment or configuration.Such as: personal computer, server computer, handheld device or portable set, laptop device, multicomputer system, system, set top box, programmable consumer-elcetronics devices, network PC, small-size computer, mainframe computer, the distributed computing environment comprising above any system or equipment etc. based on microprocessor.
The application can describe in the general context of computer executable instructions, such as program module.Usually, program module comprises the routine, program, object, assembly, data structure etc. that perform particular task or realize particular abstract data type.Also can put into practice the application in a distributed computing environment, in these distributed computing environment, be executed the task by the remote processing devices be connected by communication network.In a distributed computing environment, program module can be arranged in the local and remote computer-readable storage medium comprising memory device.
It should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle, can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the application.
The above is only the preferred implementation of the application, those skilled in the art is understood or realizes the application.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an accumulator capacity evaluation method, is characterized in that, comprises the following steps:
Detect conductance during battery-operated;
Obtain conductance radix, scale-up factor and the conductance reference value corresponding with the model of described accumulator respectively;
The calculated capacity of described accumulator is calculated according to the detected value of described conductance, conductance radix, scale-up factor and conductance reference value;
The estimation equation of described calculated capacity is: conductance reference value-scale-up factor × (detected value of conductance radix-conductance);
The calculated capacity of described accumulator and null value are compared;
The capacity of described accumulator is obtained according to comparative result.
2. method according to claim 1, is characterized in that, conductance during described detection battery-operated, specifically comprises:
The both positive and negative polarity of described accumulator is connected with detection load and discharges;
Control described accumulator to discharge according to default discharge rate, and carry out timing;
After timing time equals Preset Time, detect the conductance of described accumulator.
3. method according to claim 1, is characterized in that, before conductance during described detection battery-operated, comprises further:
In advance for the accumulator of some models, repeatedly test respectively;
According to the conductance radix of this model accumulator of test result calculations, scale-up factor and conductance reference value;
Set up accumulator model and the corresponding relation between conductance radix, scale-up factor and conductance reference value, and the corresponding relation of the accumulator of different model forms a mapping table.
4. method according to claim 3, is characterized in that, conductance radix, scale-up factor and conductance reference value that described acquisition is corresponding with described accumulator, specifically comprises:
Obtain the model of carrying out the accumulator of Conductivity detection;
In described mapping table, search the model obtaining described accumulator, and search according to corresponding relation and obtain the conductance radix corresponding with described accumulator, scale-up factor and conductance reference value.
5. method according to claim 1, is characterized in that, the described capacity obtaining described accumulator according to comparative result, specifically comprises:
When the calculated capacity of described accumulator is greater than null value, using the capacity of described calculated capacity as described accumulator;
When the calculated capacity of described accumulator is less than or equal to null value, then determine that the capacity of described accumulator is zero.
6. an accumulator capacity estimating system, is characterized in that, comprising:
Electric conductance test instrument, parameter acquiring unit, calculated capacity acquiring unit, comparing unit and determining unit, wherein:
Described electric conductance test instrument, for detecting conductance during battery-operated;
Described parameter acquiring unit, for obtaining conductance radix, scale-up factor and the conductance reference value corresponding with described accumulator respectively;
Described calculated capacity acquiring unit, calculates the calculated capacity of described accumulator for the detected value according to described conductance, conductance radix, scale-up factor and conductance reference value; The estimation equation of described calculated capacity is: conductance reference value-scale-up factor × (detected value of conductance radix-conductance);
Described comparing unit, for comparing the calculated capacity of described accumulator and null value;
Described determining unit, for obtaining the capacity of described accumulator according to comparative result.
7. system according to claim 6, is characterized in that, also comprises: the timer be connected with electric conductance test instrument;
Described accumulator discharges according to default discharge rate;
Described timer is used for carrying out timing to the time that described accumulator discharges according to default discharge rate, and after timing time equals Preset Time, controls described electric conductance test instrument and start working.
8. system according to claim 6, is characterized in that, this system comprises further: parameter presets unit, comprising: pretest unit, parameter calculation unit and corresponding relation set up unit, wherein:
Pretest unit, in advance for the accumulator of some models, repeatedly tests respectively;
Parameter calculation unit, for the conductance radix according to this model accumulator of test result calculations, scale-up factor and conductance reference value;
Corresponding relation sets up unit, and for setting up accumulator model and the corresponding relation between conductance radix, scale-up factor and conductance reference value, and the corresponding relation of the accumulator of different model forms a mapping table.
9. system according to claim 8, is characterized in that, described parameter acquiring unit comprises: model acquiring unit and query unit, wherein:
Model acquiring unit, for obtaining the model of the accumulator carrying out Conductivity detection;
Query unit, for searching the model obtaining described accumulator in described mapping table, and searches according to corresponding relation and obtains the conductance radix corresponding with described accumulator, scale-up factor and conductance reference value.
10. system according to claim 6, is characterized in that, described determining unit comprises: first determines that subelement determined by subelement and second, wherein:
First determines subelement, is connected with described comparing unit, for when the calculated capacity of described accumulator is greater than null value, using the capacity of described calculated capacity as described accumulator;
Second determines subelement, is connected with described comparing unit, for when the calculated capacity of described accumulator is less than or equal to null value, then determines that the capacity of described accumulator is zero.
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| WO2004062010A1 (en) * | 2002-12-31 | 2004-07-22 | Midtronics, Inc. | Apparatus and method for predicting the remaining discharge time of a battery |
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| US7928735B2 (en) * | 2007-07-23 | 2011-04-19 | Yung-Sheng Huang | Battery performance monitor |
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